package com.atguigu.pratice;
class ListNode{
    int val;
    ListNode next;
    ListNode(){
    }
    ListNode(int val){
        this.val=val;
    }
    ListNode(int val,ListNode next){
        this.val=val;
        this.next=next;
    }
}
public class RemoveAllKey {
    public ListNode removeElements(ListNode head,int val){
        if(head==null){
            return null;
        }
        ListNode cur=head;
        while(cur.next!=null){
            if(cur.next.val==val){
                cur.next=cur.next.next;
            }else{
                cur=cur.next;
            }
        }
        if(head.val==val){
            head=head.next;
        }
        return head;
    }
}
